Isaías Peral Puebla was born on 7 March 1953 in Villabasta de Valdavia (Palencia).
A military officer with the rank of Signals Colonel, with an undergraduate degree in Business Administration (ICADE), a Master's Degree in Systems Management and Information and Communications Technologies (INAP) and graduate of the IESE Public Management Leadership Programme. He is married, and has three children.
In 1996 he was appointed Chief of Communications and IT of the Royal Household of H.M., in the General Secretariat for Communications and IT.
By Royal Decree 1574/2006 of 22 of December, he was appointed Chief of the Administration, Infrastructure and Services Unit of the General Secretariat of the Royal Household of His Majesty the King.